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Bmw 330i m sport pro edition auto vs Bmw 520: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Bmw 330i m sport pro edition auto
90%
MOT pass rate · 44 vehicles
Bmw 520
78%
MOT pass rate · 156,398 vehicles
Verdict: On MOT pass rate the Bmw 330i m sport pro edition auto (90%) and Bmw 520 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Bmw 330i m sport pro edition auto Bmw 520
MOT pass rate 90% ✓ 78%
MOT failure rate 10% ✓ 22%
Faults & advisories per test 0.6 ✓ 1.6
Dangerous-fault share 11% 3% ✓
Average mileage 38,747 mi 134,460 mi
Sample size (vehicles) 44 156,398

Most common faults

Bmw 330i m sport pro edition auto

  1. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Offside Rear Inner Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Nearside Front Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))

Bmw 520

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Under-trays fitted obscuring some underside components
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Bmw 330i m sport pro edition auto (90%) and Bmw 520 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Bmw 330i m sport pro edition auto report Full Bmw 520 report Most reliable cars

Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.